Hernandez made 14 appearances (12 starts) for the Twins last season, but the results were uninspiring as he had a high walk rate (3.7 BB/9) and underwhelming velocity (88.9 mph fastball). He doesn't produce groundballs at good rate (39.9 percent) and has a mediocre strikeout rate (6.5 K/9 IP) to make matters worse. After he was let go by the Twins, he signed with Colorado where he'll likely provide depth at Triple-A.

2012

After showing some promise on the lower levels of the minor leagues, Hernandez has struggled to live up to his potential. His K/BB has suffered with each advancement in level and his HR/9 IP has seen a increase as well. While he wasn't considered a top prospect in the Padres system, he may look a little better now that he is with the White Sox. Their depleted farm system could improve his path to the majors if the big club suffers some injuries in the bullpen.